Hey Chris, I sent a second question on TR Rubicons to the Dr. Z site about a week ago like I said I would. Their lack of response may mean that, other than what they gave me the first go around -- "987 TR Rubicons sold in 2003" -- (web admins, reps) don't have any other information readily available.
Daimler Chrysler did around 120 billion in sales in 2003 and the TR Rubicons accounted for maybe 3 million of that. So the TR model is not much more than a very minor footnote to them, financially speaking :cry: Even so, the information on exact production numbers is at DC/Jeep somewhere, though. :D
You may be one of the first few people to buy a TR Rubicon with some miles on it. Most new buyers of the TR Rubicon probably didn't care so much about precise production numbers because they knew they had a new vehicle, knew it was a limited addition, saw the individual number of the vehicle, and that was that. But, a collector who buys a limited edition Jeep "used" is going to want more details. So, bad news is that, given that it's onl 2006, you may be one of the first people to really want an answer to the question, "what's the total number of the TR Rubicons that were made?"
I'd just focus on hitting DC/Jeep until they cough up a written answer/DCJeep document that states the number. Because, unless they have DCJeep documents or answers confirming production numbers, other sources -- 4x4 clubs, rubicon fans, Jeep wizards -- may not necessarily provide precisely accurate info to you on this. I'll keep hitting DC for an answer myself and if they send docs, then I'll send you copies.